Combination boiler tube blower



Dec. 15, 1931. D. YOUNG COMBINATION BOILER TUBE BLOWER Filed Aug. 29, 1927 FIG .1,

Patented Dec. 15, 1931 -UNETE STATES :P-AT ENT E f i, i 1 .1

DAVID YOUNG, OF NEVJ'ARK, NEW JERSEY COMBINATION BOILER TUBE BLOWER;

Application filed. August 29, 1927. Serial No. 216,299.

This invention relates to apparatus for cleaning boiler tubes particularly those coated with soot and more particularly to a portable apparatus adaptable for cleaning vertical tubes either from the top or the bottom and for cleaning horizontal tubes in vertical and horizontal boilers respectively.

Known device cannot be quickly placed in proper position for cleaning the tubes at the top crown of vertical boilers due to the positions of the mountin s, fittings, fixtures, and pipes nor can they e readily attached to or separated from the source of steam or compressed air by means of which the cleaning is effected. Such devices are, moreover,

not adaptable to horizontal tubes nor for cleaning vertical tubes-from the bottom. a

The present invention overcomes all these disadvantages and presents additional advantages peculiar to its construction. It is adaptable to horizontal tubes and for cleaning vertical tubes from the bottom. It is portable, readily placed in position, easily and quickly connected to or separated from the source of steam or compressed air, and

otherwise admirably adapted to perform the functions for which it was designed.

Reference is made to the accompanying drawings wherein:

Figure 1 is a View of a form of the apparatus for cleaning horizontal boiler tubes;

Figure 2 is a side elevation of an attachment used for cleaning vertical tubes from the bottom.

Similar numerals refer to similar parts throughout the several views.

Referring now particularly to the drawings, 1 is a pipe having a coupling 2 onits rearward end by means'of which connection is made to the source of steam or compressed air. On the forward end is a four-way fitting 3 and intermediate the ends is a valve 4 whereby the steam or compressed air can be suitably controlled.

Suitably united to the pipe 1 are handles 5 and 6, as shown, so that the apparatus may be appropriately directed and guided.

These elements are common to both modifications of the invention shown in Figs. 1 and 2. The device shown in Fig. 1 is particularly adapted to serve the purpose of cleaning horizontal boiler tubes and comprises a readily removable attachment" associated with the hereinbefore mentioned elements common to both modifications of the inven tion. This attachment comprises a blower head 9 surrounded by a. tapered sleeve '11 which permits a tight fit in the boiler'tube 're I i gardless of the size thereof. The sleeve ll is backed upbya'nut 1O threaded on the pipe 12,. to the other end of the pipe beingthreadec'llyreceived by one of the openings the four way pipe fitting 3. The pipe 12 may be bowed or otherwise shaped as at-13 to morereadily' I provided with a movable rod 17 threaded to fit into an opening of the pipe fittingil. The side of casing 16 has a slot 19 through which projects'a boss 17 on the movable rod to limit the vertical movement-of the rodQA spring 21 is arranged in the casing 16 below the rod 15 to normally urge the rod upwardly while the blower is in operation. a The blower 9 surrounded by the tapered sleeve 11-is'se cured to a pipe 8 threaded to fitintoan opening in the fitting 3' and a nut 10 is employed 7 to back up the sleeve ll. Athreaded plug 22 is employed to close up the unused openingin the fitting which is adapted to receive the pipe'12 when convertedinto the attachment showninFiglj V p a The operation of the attachmentvsho'wn in Figure 2 is thought to be clearbut will be stated for convenience at'this point. By means of handles 5 and 6 pipe 1 and conse quently blower head 9, 11, and resilient support 16 are directed to the bottom of the boil-- er tube to be cleaned. The tapering sle'eve permits a tight fit regardless of the size of the tube Within the limits ofthe sleeve and pipe 8 can be ofiset or otherwise shaped to reach all tubes Whatever the locations. Sleeve 11 is tightly fitted into the boiler tube, the device being depressed against the pressure of spring 21 to accomplish the same. The tension of the spring. 21 tends to normally maintain the sleeve 11 in Working position independently ofany forceexerted on the handles 5 and 6. The steam or compressed air is expelled through suitably arranged openings in the blower head 9 arranged inthe tapered sleeve 11 and is directed violently against the Walls of the boiler tube thuseffectively cleaning the same.

It is apparent that other modifications of thedevice can be obtained by rearranging the parts Without departing from the spirit of the invention, 1 claim:

' e 1.- A boiler tube cleaner comprising a pipe, 7

handles secured thereto, a couplingat' the 1nlet end of the pipe, a fitting having a plurality of angularly arranged openings, an 6X- tension pipefitted into one of the openings at an angle to said first pipe, a blower head secured to the other end of said extension pipe, a standard having one end fitted into an opening opposite said extension pipe, a plug fitted in the other opening, a casing slidably embracing the other end of the standard, a spring arranged between the end of the standard and the bottom of the casing, and a valve for controlling the discharge from said blower head.

2. A boiler tube cleaner comprising a pipe, handlessecured thereto, a coupling at the 1nlet end of the pipe, a fitting having a plurality of angularly arranged openings at the other end of thepipe, an extension pipe fitted into one of the openings at a right angle to said first pipe, a blower head secured to the other end of said extension pipe, a standard having a foot at one end and having the other end fitted into an opening opposite said extension pipe and at right angles to said first pipe, a plug fitted in the other opening, a

casing 'slidably embracingthe foot end of the standard, a compression spring arranged be tween the foot of the standard and the bottom of the casing, and a valve for controlling the discharge from said blower head.

Dated the 17th dayof August, 1927. 3 y DAVID YOUNG. 

